[TowerTalk] UST Tower MA770 Starting Motor Capacitor

Joe Subich, W4TV lists at subich.com
Tue Jan 30 20:52:02 EST 2024



 > How rigid is the 375MFD value?

Not that rigid ...

> I have found on eBay a cap, 378-454 uF MFD at 250VAC. Would this meet
> the starting cap value?
Easily.

73,

    ... Joe, W4TV

On 1/30/2024 8:39 PM, Raymond Benny wrote:
>   I've had a MA770 tubular tower in the air for the last 15 years. I got it
> second hand 20 years ago. It's probably 40 years old. I need to replace the
> raising motor starting cap.I have the old cap in my hand and all I can read
> is 375 MFD. The motor operates on 120VAC. The motor name/data plate has
> been painted over, so I cannot read anything about it
> 
> I have several questions:
> Does anyone have the make, model number or manufacturer info for MA770
> motor? And the info on the starting cap?
> 
> How rigid is the 375MFD value? I have found on eBay a cap, 378-454 uF MFD
> at 250VAC. Would this meet the starting cap value? I know I don't need 240
> VAC rated, but one rating should not be a problem. The measurements given
> for the cap will fit into the external cap holder.
> 
> Thanks,
> Ray,
> N6VR/W7YA
> 





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